evo.rocks
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| posted on 29/3/10 at 10:25 AM |
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Speedo needle going a bit crazy
I was out yesterday and when i accelerate (pedal to the metal) the speedo goes mad and the needle starts to rock back and to.
When i accelerate at a normal pace, the needle reads fine up until about 40mph.
Why is it doing this?!?!?
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blakep82
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| posted on 29/3/10 at 10:28 AM |
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it it cable driven or electronic?
think the cable one on my old mini used to do that a bit (might have been the rev counter actually...)
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mcerd1
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| posted on 29/3/10 at 10:29 AM |
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what kind of sender have you got and how is it mounted ?
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fesycresy
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| posted on 29/3/10 at 10:30 AM |
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The square drive may be rounding off.
Try a new cable.
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The sooner you fall behind, the more time you'll have to catch up.
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MK9R
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| posted on 29/3/10 at 10:34 AM |
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if its electrical, mine went nuts just before the battery collapsed.
Cheers Austen
RGB car number 9
www.austengreenway.co.uk
www.automatedtechnologygroup.co.uk
www.trackace.co.uk
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evo.rocks
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| posted on 29/3/10 at 11:04 AM |
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its electrical. I have the smithes telemetrix speedo so it picks up the signal from magnets on the prop shaft through the sender.
I just dont understand why its doing it all of a sudden
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mcerd1
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| posted on 29/3/10 at 11:06 AM |
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how solid is your sender mounting ? (could it have worked itself loose ?)
I think the magnets on the prop can be a real PITA to get right 
[Edited on 29/3/10 by mcerd1]
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MK9R
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| posted on 29/3/10 at 11:11 AM |
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quote:
Originally posted by evo.rocks
its electrical. I have the smithes telemetrix speedo so it picks up the signal from magnets on the prop shaft through the sender.
I just dont understand why its doing it all of a sudden
thats what i had, i lost a magnet once, i also had an issue with the mounting bracket vibrating so it kept losing the pulse, then when the battery was
about to die it went crazy
Cheers Austen
RGB car number 9
www.austengreenway.co.uk
www.automatedtechnologygroup.co.uk
www.trackace.co.uk
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Xtreme Kermit
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| posted on 29/3/10 at 11:57 AM |
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My speedo and revcounter went nuts once when the earth connection to the chassis came loose.
I would check all your earths first.
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nick205
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| posted on 29/3/10 at 04:34 PM |
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pah - just stick to 40mph, you'll be fine 
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